Method and apparatus for automatically setting up of paper cases with the bendable-headed inner case

ABSTRACT

Apparatus for automatically setting up of a paper case including an inner case whose head or lid portion bends to one side when pushed at the bottom for opening and the method of making same comprising an inner case setting up process wherein inner case blanks cut in the desired shape and piled up, are transferred intermittently one by one, are folded up and down along creases automatically, during which a locking portion which prevents, at a certain point, folding over of the end portion of inner case, is led under a guide plate, a tapered end of the inner case is led from the lower side to the upper side of said guide plate and the end of the guide plate is inserted between the back part and said locking portion; an outer case setting up process wherein folded blanks for the outer case in piled conditions are transferred intermittently one by one onto a different line from that for setting up inner cases, after which the outer case is formed, straightened up and drawn out as it is seized at its interlocking flap, which is folded inwardly; and an insertion process wherein the set up inner case is inserted in the set up outer case.

United States Patent [191 Yamamura METHOD AND APPARATUS FOR AUTOMATICALLY SETTING UP OF PAPER CASES WITH THE BENDABLE-HEADED INNER CASE [75] Inventor: Yoshinobu Yamamura, Kyoto,

Japan 1 [73] Assignee: Kinki lnsatsu Kabushiki Kaisha,

Mitejima, Nishiyodogawa-ku, Osaka, Japan 22 Filed: Mar. 29, 1972 21 Appl. No.: 239,116

93/36.0|, 39 R, 40, 43,53 LP, 54 R, 54.2, 36 DA; 53/169, 175

[56] References Cited UNITED STATES PATENTS 2,082,565 6/1937 Benoit 93/55 X 2,645,984 7/l953 Linstedt 93/55 X 2,541,914 2/1951 Conser 93/55 X 2,342,158 2/1944 Moore..... 93/36 R X 1,830,342 11/1931 Stokes 93/43 X Dec. 18, 1973 3,425,324 2/1969 Becker et a] 93/36.01

Primary ExaminerAndrew R. Juhasz Assistant Examiner-James F. Coan Att0rneyAus1ander & Thomas [57] ABSTRACT Apparatus for automatically setting up of a paper case including an inner case whose head or lid portion bends to one side when pushed at the bottom for opening and the method of making same comprising an inner case setting up process wherein inner case blanks cut in the desired shape and piled up, are transferred intermittently one by one, are folded up and down along creases automatically, during which a locking portion which prevents, at a certain point, folding over of the end portion of inner case, is led under a guide plate, a tapered end of the inner case is led from the lower side to the upper side of said guide plate and the end of the guide plate is inserted between the back part and said locking portion; an outer case setting up process wherein folded blanks for the 3 Claims, 32 Drawing Figures mil;

PATENTED UECI 8W5 saw our 1 PATENIEDUEC] @373 Sam near 18 PATENTEUBEE18I3Y5' V 3.779.140

SHEEI our 18 PATENTEDUEBI m 3.779.140

SHEET one? 18 PAIENTEUHEE 1 81373 SHEEI USUF 18 PAIENTEUBEBWHB 779,140

sum DMF 18 F15. if;

"o o @F 584 355 PATENTEU m1 a 19. 5 v

. 3.779. sum 080$ 13 II II 552 l 404 PATENTED DEC] 81375 SIIEEI 09 0F 18 IIIIIIH {@ill'llllll PAIENIEnnEm 81m saw 110! 1a PATENTEDUEUBIQH 3779.140

SHEET 1H0? 13 Fig-24 71 i n i 71 W fl PATENTEDSEm 2:375 3,779,140

SNEEI 170$ 13 METHOD AND APPARATUS FOR AUTOMATICALLY SETTING UP OF PAPER CASES WITH THE BENDABLE-IIEADED INNER CASE This invention relatesto a method and an apparatus for automatically setting up of paper cases, chiefly for cigarettes and chocolate, in which an inner case and an outer case are provided with an interlocking flap respectively, more specifically, relates to a method and an apparatus for automatically setting up of push-type paper cases wherein interlocking flaps of the inner case and the outer case engage with each other by pushing the bottom of the inner case and further pushing given to the bottom causes a bendable top portion or lid portion of the inner case to bend to one side to faciliate taking out of contents.

Conventional paper cases for cigarettes, chocolate and the like are so designed that the inner case is slipped in or out of the outer case by pushing its top or bottom part. Various methods and apparatuses for automatically setting up of such push-type cases have been available, but improvements on such conventional type cases have recently been made, whereby the top or lid portion of the inner case'bends to one side as it is pushed at its bottom to make it easy to take out the contents. Such paper cases have already been used as containers for cigarettes, chocolate and the like. However, in setting up of such improved type paper cases, while it is required for the setting up of inner case to cut cardboard in the desired shape by punching, to give necessary cuts and ruled lines thereto, to turn down and up suchan inner case blank, to make an interlocking flap at the turned-up part and to insert a top portion of the turned-up part into a locking portion cut in the back part, it is necessary for the outer case to have at one of its top edges an interlocking flap turned down inwards and finally the inner case must be inserted in the outer case with its interlocking flap turned down I inwards. For setting up of the above-mentioned paper cases on the complete automation'system, the conventional method and apparatus cannot be used and it has been earnestly desired to realize an apparatus whereby the above-mentioned paper cases are set up automatically.

The present invention has been made to meet the above requirements and provides a novel method and an apparatus for setting up, on complete automatic basis, of push-type paper cases in which the head portion of the inner case bends to one side as it is pushed at the bottom to facilitate taking out of the contents. More concretely, the present invention has for an object to provide a method and an apparatus for setting up of paper cases, wherein while inner case blanks which have been made by punching and cutting cardboard in the desired shape and piled up and transferred intermittently one by one and are bent along the ruled lines on automatic basis, a locking portion for Preventing the inner case body from being pushed further than is necessary is put along the underside of a guide plate, an insert portion of the inner case is led from the underside of the guide plate to the upper side and is inserted between the back part and the locking portion (the inner case setting up process); outer case blanks which have been folded flat andpiled up are transferred intermittently one by one on a line separate from the line for inner cases, are set up in the proper form and removed of strain, are pulled out as they are pinched at the interlocking flap and thereafter the interlocking flap is bent inwards (the outer case setting up process) and finally the set up inner case is slipped in the set up outer cases.

The nature and advantages of the present invention will be understood more clearly from the following description made with reference to an embodiment and the accompanying drawings, in which FIG. 1 is a diagram showing the arrangement of the apparatuses of the present invention.

FIG. 2 is a diagram explaining the setting up process of a paper case having an inner case whose head portion bends to one side on opening.

FIG. 3 shows an inner case as it is spread out.

FIG. 4 is a plan view of an inner case blank feeding device.

FIG. 5 is a side view of a suction device.

FIG. 6 is a side view of an inner case stabilizing apparatus.

FIG. 7 is a plan view of a bottom flaps inward bending device, an interlocking flap inward bending device and a bendable head portion creasing device.

FIG. 8 is a side view of the bottom flaps inward bending device.

FIG. 9 is a side view of the interlocking flap inward bending device.

FIG. 10 is a side view of the bendable head portion creasing device.

FIG. 11 is a side elevation of a device for nipping and transferring of blanks.

FIG. 12 and FIG. 13 are respectively a plan view and a front view of a device for bending inwards the threesectioned sides of the back part.

FIG. 14 is a plan view of a device for bending the sides of the ceiling part.

FIG. 15 is a plan view of a device for bending of bottom flaps and a device for pasting of the outer side of the ceiling part.

FIG. 16 is a side elevation of a device for creasing the ceiling part.

FIG. 17 is a side elevation of a device for bending the ceiling part and a device for bending the sides of the front part FIG. 18 is a side elevation of a device for fixing the pasted part.

FIG. 19 is 'a front view of the main part of a device for bending and inserting the insert portion.

FIG. 20 is a plan view of the main part of the device shown in FIG. 19.

FIG. 21 is a plan view of a device for bending the front part and a device for bending the bendable head portion.

FIG. 22 is a perspective view of the main part of the device for bending the bendable head portion.

FIG. 23 is a perspective view of a levelling plate of the device shown in FIG.'22.

FIG. 24 is a front view of a lid closing device.

FIG. 25 is a front view of a transferring device at the latter stage. i I

FIG. 26 is a base view -of a device for changing the course of the inner case. r

FIG. 27 is a front view of the device shown in FIG. 26.

FIG. 28 is aside elevation of .an outer case blanks feeding device.

FIG. 29 is a side elevation of a device for forming the rectangular tube.

FIG. 30 is a plan view of a shaping and finishing device, a pulling out device and a pushing out device. 

1. A method of setting up the paper case with an inner case whose head or lid portion bends to one side on opening, comprising an inner case setting up process wherein inner case blanks cut in the desired shape and having ruled lines and cutins for forming interlocking flaps and a locking portion (c) are transferred intermittently, during which folding up and down at ruled lines are effected, the locking portion is led under a guide plate and an insert portion (d) is led from the lower side to the upper side of said guide plate and is inserted between the back part (q) and the locking portion (c); an outer case setting up process wherein the outer case blank haviNg an interlocking flap to engage with an interlocking flap of the inner case is formed into a rectangular tube, the interlocking flap of the outer case is folded inwardly and the rectangular tube is turned back into a form of lozenged section to remove the dynamical stability of the outer case blank for proper shaping of the outer case; and a final setting up process wherein the set up inner case is inserted into the outer case and the completed paper case is transferred to the desired position.
 2. A method of setting up the paper case with an inner case whose head or lid portion bends to one side on opening as defined in claim 1, wherein the inner case setting up process includes the step of changing direction of the inner case by an angle of 90* to be joined to the afore-mentioned outer case.
 3. Apparatus for manufacturing the paper case with an inner case whose head or lid portion bends to one side on opening, comprising the combination of an apparatus for setting up the inner case including an endless conveyor to support inner case blanks thereon and feed them out one by one, an intermittent transferring device connected to said conveyer, an inner case blanks storage arranged above and in front of said conveyor to store therein inner case blanks in piled conditions, an inner case blanks feeding device to feed inner case blanks onto the conveyer one by one from said storage, a folding device arranged along the conveyor to fold each part of the inner case blank, a guide plate arranged along the conveyer to turn up and down the outer part of the ceiling (g) and adjacent fold-down portions (f1) and (f2), a guide plate for a locking portion (c), a doubling plate for the bottom part (k) and a guide rod for the front part (l); and apparatus for setting up the outer case including an outer case blanks storage to store therein flat folded outer case blanks in piled conditions, an outer case blanks feeding device to push out outer case blanks from the underside of said outer case blanks storage, an outer case blanks guiding device, an outer case blank shaping device to open out the outer case blank into a rectangular tube, an outer case shape correcting device to turn back the rectangular tube into a form of lozenged section and an outer case interlocking flap folding device; and an apparatus for inserting the set up inner case into the set up outer case and transferring the completed paper case to the desired position. 